朱建中同志: 来信问及“棉花的铃重、绒长、衣分与环境条件有什么关系?”现简要回答如下: 棉花铃重、绒长、衣分是构成产量的主要因素,都是数量性状遗传,比较容易受环境条件的影响而发生改变。而这种影响往往是多种因素的综合作用。铃重:棉铃成长期平均温度在25℃以上,或有1350℃以上的活动积温有利于棉铃发育,达到正常铃重,平均温度在16℃以下,铃重显著下降。随着播期推迟,后期温 Comrade Zhu Jianzhong: “What is the relationship between cotton boll weight, cashmere length and environmental conditions?” Is now a brief answer as follows: Cotton boll weight, cashmere length and clothing percentage are the major factors that make up the output, all of which are quantitative traits Genetic, more easily affected by environmental conditions change. And this effect is often a combination of many factors. Boll weight: The average temperature of boll growth in more than 25 ℃, or more than 1350 ℃ accumulated activity is conducive to the development of cotton bolls to reach the normal boll weight, the average temperature below 16 ℃, boll weight decreased significantly. With the sowing delay, post-temperature